DS21Q59

NOT RECOMMENDED FOR NEW DESIGNS

E1 Quad Transceiver

Data Sheet (Rev. 1)
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Part Details

  • Four Complete E1 (CEPT) PCM-30/ISDN-PRI Transceivers
  • Pin Compatible with the DS21Q50
  • Long-Haul and Short-Haul Line Interfaces
  • 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
  • Frames to FAS, CAS, and CRC4 Formats
  • CAS/CCS Signaling Support
  • 4MHz/8MHz/16MHz Clock Synthesizer
  • Flexible System Clock with Automatic Source Switching on Loss-of-Clock Source
  • Two-Frame Elastic-Store Slip Buffer on the Receive Side
  • Interleaving PCM Bus Operation Up to 16.384MHz
  • Configurable Parallel and Serial Port Operation
  • Detects and Generates Remote and AIS Alarms
  • Fully Independent Transmit and Receive Functionality
  • Four Separate Loopback Functions
  • PRBS Generation/Detection/Error Counting
  • 3.3V Low-Power CMOS
  • Large Counters for Bipolar and Code Violations, CRC4 Codeword Errors, FAS Word Errors, and E Bits
  • Eight Additional User-Configurable Output Pins
  • 100-Pin (14mm) LQFP Package
DS21Q59
E1 Quad Transceiver
DS21Q59: Block Diagram
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 2

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Product 1
DS21Q50
LAST TIME BUY Quad E1 Transceiver
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Evaluation Kits

DS21Q58

E1 Quad Transceiver

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Features and Benefits

  • Four Complete E1 (CEPT) PCM-30/ISDN-PRI Transceivers
  • Pin Compatible with the DS21Q50 and DS21Q59
  • Short-Haul Line Interfaces
  • 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
  • Frames to FAS, CAS, and CRC4 Formats
  • CAS/CCS Signaling Support
  • 4MHz/8MHz/16MHz Clock Synthesizer
  • Flexible System Clock with Automatic Source Switching on Loss-of-Clock Source
  • Two-Frame Elastic-Store Slip Buffer on the Receive Side
  • Interleaving PCM Bus Operation Up to 16.384MHz
  • Configurable Parallel and Serial Port Operation
  • Detects and Generates Remote and AIS Alarms
  • Fully Independent Transmit and Receive Functionality
  • Four Separate Loopback Functions
  • PRBS Generation/Detection/Error Counting
  • 3.3V Low-Power CMOS
  • Large Counters for Bipolar and Code Violations, CRC4 Codeword Errors, FAS Word Errors, and E Bits
  • Eight Additional User-Configurable Output Pins
  • 100-Pin (14mm x 14mm) LQFP Package

Product Details

The DS21Q58 E1 quad transceiver contains all the necessary functions for connecting to four E1 lines. The DS21Q58 is a direct replacement for the DS21Q50, with the addition of signaling access and improved interrupt handling. It is composed of a line interface unit (LIU), framer, and a TDM backplane interface, and is controlled through an 8-bit parallel port configured for Intel or Motorola bus operations or serial port operation.

Applications

  • Add/Drop Multiplexers
  • Central Office Equipment
  • Customer Premise Equipment
  • DSLAM Backplane
  • IMA
  • Line Cards
  • PBXs
  • Routers/Switches
  • Routers/Switches
  • Timing Systems
  • WAN Interface
DS21Q58
E1 Quad Transceiver

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